The point I'm making is that to get the information I think you are looking for even VMware suggests using SSH or DCUI. There is no mention of being able to do this using PowerCLI or via Web-Client. Usually their KBs list all possible methods of achieving a task, SSH, PowerCLI, Web-Client. They didn't do that here, suggesting it isn't easily possible.

I have used POSH-SSH in PowerShell before to access the ESXi CLI. This works quite well.